Confirmed Exoplanet Discovered 2014

OGLE-2008-BLG-355L b

A gas giant orbiting the unknown OGLE-2008-BLG-355L, located approximately 22,178.6 light-years from Earth.

Key parameters at a glance

  • A radius of 12.90 Earth radii
  • A mass of 1,500.00 Earth masses
  • Surface gravity around 9.01 g
  • Semi-major axis 1.7000 AU
  • Distance from Earth 22,178.61 light-years
  • Earth Similarity Index 0.426
  • Travel time at Voyager 1 speed 391,119,730 years

OGLE-2008-BLG-355L b Planet Profile

Physical Specs

Radius
12.90 R⊕
Radius (Jupiter)
1.150 R♃
Mass
1,500.00 M⊕
Mass (Jupiter)
4.600 M♃
Density
3.84 g/cm³
Surface Gravity
9.01 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.426
HZ Position Unknown
Controversial No

Discovery

Year 2014
Method Microlensing
Facility OGLE
Telescope 1.3 m Warsaw University Telescope

Size rank in cohort

Rank by radius

#1011of 1771

top 57.0%

This planet

12.90R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

Metric Earth OGLE-2008-BLG-355L b Jupiter
Radius (R⊕)1.0012.9011.21
Mass (M⊕)1.001,500.00317.83
Density (g/cm³)5.513.841.33
Surface Gravity (g)1.009.012.53
Insolation (S⊕)1.000.037

Alternative Mass Estimates

Method Value Interpretation
Best measured mass 1,500.000 M⊕ Direct mass measurement (not derived).

Percentile among Gas Giant cohort

Radius 12.900 R⊕ · percentile 41 / cohort 1771
Mass 1,500.000 M⊕ · percentile 74 / cohort 1747
Distance 6,800.00 pc · percentile 97 / cohort 1759
ESI 0.426 · percentile 93 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period
days
Semi-major axis
1.7000 AU
Eccentricity
Inclination
°

Year Length

Orbital period for this planet has not yet been measured.

Eq. Temperature

 

Insolation (S⊕)

Earth = 1.00

Earth Similarity (ESI)

0.426

0 = alien, 1 = Earth-identical

Discovery Paper

Primary reference

Koshimoto et al. 2014

Instrument

OGLE CCD Array

Publication

2014-06

Observation locale

Ground

Host System: OGLE-2008-BLG-355L

Spectral Class

Unknown

Effective Temperature

Estimated Age

Stellar Radius

Stellar Mass

0.370 M☉

Metallicity [Fe/H]

Distance
6,800.00 parsec
Light-years 22,178.61 ly
V-band magnitude
mag
Voyager-speed travel 391,119,730 yr

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